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    • 1. 发明申请
    • IMPACT ATTENUATING MEDIA
    • 影响衰减媒体
    • WO2017053568A1
    • 2017-03-30
    • PCT/US2016/053110
    • 2016-09-22
    • NATIONAL OILWELL VARCO, L.P.
    • WISSING, Matthew JohnWISSING, John Matthew
    • E21B19/14
    • E21B19/14
    • An impact attenuating device (100) that may be employed to catch falling objects, such as drill pipe, that are suspended in or above the mousehole (90) in a drilling floor includes an elongate housing (200) with first and second ends, an internal chamber, and a housing base spaced-apart from the first housing end. An attenuator base (130) is included in the housing, spaced-apart from the first housing end. At least one stack (160) of impact attenuating media is positioned in the chamber between the first housing end and the attenuator base (130), the stack (160) comprising a plurality of resilient members (162).
    • 可用于捕获在钻孔底板中悬挂在鼠标孔(90)中或上方的落下的物体(例如钻杆)的冲击衰减装置(100)包括具有第一和第二端的细长壳体(200) 内部腔室和与第一壳体端部间隔开的壳体基座。 衰减器基座(130)包括在壳体中,与第一壳体端部间隔开。 冲击衰减介质的至少一个堆叠(160)位于第一壳体端部和衰减器基座(130)之间的腔室中,堆叠(160)包括多个弹性构件(162)。